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Finding the Fourth Proportional to 321,029.62, 443,025.51 and 185,061.09

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Solution

The fourth proportional to 321,029.62, 443,025.51 and 185,061.09 is: 255,386.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,029.62 : 443,025.51 = 185,061.09 : x
  2. Step 2: Convert to fraction form
    321,029.62/443,025.51 = 185,061.09/x
  3. Step 3: Cross multiply
    321,029.62x = 443,025.51 × 185,061.09
  4. Step 4: Simplify right side
    321,029.62x = 81,986,783,778.41
  5. Step 5: Solve for x
    x = 81,986,783,778.41/321,029.62
  6. Step 6: Final answer
    x = 255,386.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.